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Average Weather at Brunswick Golden Isles Airport Georgia, United States

At Brunswick Golden Isles Airport, the summers are hot and oppressive, the winters are cold, and it is wet and partly cloudy year round. Over the course of the year, the temperature typically varies from 42°F to 92°F and is rarely below 29°F or above 97°F.

Based on the tourism score, the best times of year to visit Brunswick Golden Isles Airport for warm-weather activities are from early April to late May and from late September to early November.

Climate Summary

coolcomfortablewarmhotwarmJanFebMarAprMayJunJulAugSepOctNovDec66%66%41%41%clearovercastprecipitation: 5.1 inprecipitation: 5.1 in2.1 in2.1 inmuggy: 99%muggy: 99%2%2%drydrytourism score: 6.5tourism score: 6.53.03.0
Click on each chart for more information.

Temperature

The hot season lasts for 3.6 months, from May 25 to September 13, with an average daily high temperature above 86°F. The hottest day of the year is July 15, with an average high of 92°F and low of 74°F.

The cool season lasts for 3.0 months, from November 28 to February 28, with an average daily high temperature below 68°F. The coldest day of the year is January 17, with an average low of 42°F and high of 63°F.

Average High and Low Temperature

The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature

Average Hourly Temperature at Brunswick Golden Isles AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM4 AM8 AM12 PM4 PM8 PM12 AMcoldcoldcoldcoldcoolcoolcomfortablewarmhotcomfortable
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

El Hamma, Tunisia (5,126 miles away); Al Hadā, Saudi Arabia (7,144 miles); and Roxby Downs, Australia (10,185 miles) are the far-away foreign places with temperatures most similar to Brunswick Golden Isles Airport (view comparison).

Clouds

At Brunswick Golden Isles Airport, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year at Brunswick Golden Isles Airport begins around September 16 and lasts for 8.7 months, ending around June 7. On October 27, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 66% of the time, and overcast or mostly cloudy 34% of the time.

The cloudier part of the year begins around June 7 and lasts for 3.3 months, ending around September 16. On July 12, the cloudiest day of the year, the sky is overcast or mostly cloudy 59% of the time, and clear, mostly clear, or partly cloudy 41% of the time.

Cloud Cover Categories

Cloud Cover Categories at Brunswick Golden Isles AirportclearerclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Oct 2766%Oct 2766%Jul 1241%Jul 1241%Sep 1653%Sep 1653%Jun 754%Jun 754%clearpartly cloudymostly cloudyovercastmostly clear
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days at Brunswick Golden Isles Airport varies significantly throughout the year.

The wetter season lasts 3.7 months, from May 31 to September 21, with a greater than 35% chance of a given day being a wet day. The chance of a wet day peaks at 53% on August 13.

The drier season lasts 8.3 months, from September 21 to May 31. The smallest chance of a wet day is 16% on October 31.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 53% on August 13.

Daily Chance of Precipitation

Daily Chance of Precipitation at Brunswick Golden Isles AirportwetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Aug 1353%Aug 1353%Oct 3116%Oct 3116%Jan 122%Jan 122%May 3135%May 3135%Sep 2135%Sep 2135%rain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Brunswick Golden Isles Airport experiences significant seasonal variation in monthly rainfall.

Rain falls throughout the year at Brunswick Golden Isles Airport. The most rain falls during the 31 days centered around August 25, with an average total accumulation of 5.1 inches.

The least rain falls around May 6, with an average total accumulation of 2.1 inches.

Average Monthly Rainfall

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average liquid-equivalent snowfall.

Sun

The length of the day at Brunswick Golden Isles Airport varies significantly over the course of the year. In 2018, the shortest day is December 21, with 10 hours, 7 minutes of daylight; the longest day is June 21, with 14 hours, 11 minutes of daylight.

Hours of Daylight and Twilight

Hours of Daylight and Twilight at Brunswick Golden Isles AirportJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 8 minMar 2012 hr, 8 minMar 2014 hr, 11 minJun 2114 hr, 11 minJun 2112 hr, 8 minSep 2212 hr, 8 minSep 2210 hr, 7 minDec 2110 hr, 7 minDec 21nightnightday
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise is at 6:21 AM on June 11, and the latest sunrise is 1 hour, 22 minutes later at 7:43 AM on November 3. The earliest sunset is at 5:22 PM on December 3, and the latest sunset is 3 hours, 11 minutes later at 8:34 PM on June 30.

Daylight saving time (DST) is observed at Brunswick Golden Isles Airport during 2018, starting in the spring on March 11, lasting 7.8 months, and ending in the fall on November 4.

Sunrise & Sunset with Twilight and Daylight Saving Time

Sunrise & Sunset with Twilight and Daylight Saving Time at Brunswick Golden Isles AirportJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 116:21 AMJun 116:21 AM8:34 PMJun 308:34 PMJun 30Dec 35:22 PMDec 35:22 PM7:43 AMNov 37:43 AMNov 3Mar 11DSTMar 11DSTDSTNov 4DSTNov 4daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of the year 2018. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight saving time are indicated by the 'DST' labels.

Humidity

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

Brunswick Golden Isles Airport experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 6.2 months, from April 23 to October 30, during which time the comfort level is muggy, oppressive, or miserable at least 27% of the time. The muggiest day of the year is August 6, with muggy conditions 99% of the time.

The least muggy day of the year is January 25, with muggy conditions 2% of the time.

Humidity Comfort Levels

Humidity Comfort Levels at Brunswick Golden Isles AirportmuggyJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Jan 252%Jan 252%99%Aug 699%Aug 6Apr 2327%Apr 2327%Oct 3027%Oct 3027%miserablemiserableoppressiveoppressivehumidhumiddrydry
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

Wind

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed at Brunswick Golden Isles Airport experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 8.1 months, from September 13 to May 15, with average wind speeds of more than 7.2 miles per hour. The windiest day of the year is January 29, with an average hourly wind speed of 8.1 miles per hour.

The calmer time of year lasts for 3.9 months, from May 15 to September 13. The calmest day of the year is August 5, with an average hourly wind speed of 6.2 miles per hour.

Average Wind Speed

Average Wind Speed at Brunswick Golden Isles AirportwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph2 mph4 mph6 mph8 mph10 mph12 mphJan 298.1 mphJan 298.1 mphAug 56.2 mphAug 56.2 mphMay 157.2 mphMay 157.2 mph
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The predominant average hourly wind direction at Brunswick Golden Isles Airport varies throughout the year.

The wind is most often from the west for 2.6 months, from January 3 to March 23, with a peak percentage of 35% on January 12. The wind is most often from the south for 4.8 months, from March 23 to August 18, with a peak percentage of 46% on July 19. The wind is most often from the north for 2.5 months, from October 18 to January 3, with a peak percentage of 32% on January 1.

Wind Direction

Wind Direction at Brunswick Golden Isles AirportWSENJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%westsoutheastnorth
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Water Temperature

Brunswick Golden Isles Airport is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average water temperature experiences significant seasonal variation over the course of the year.

The time of year with warmer water lasts for 3.9 months, from June 7 to October 4, with an average temperature above 79°F. The day of the year with the warmest water is August 8, with an average temperature of 83°F.

The time of year with cooler water lasts for 3.8 months, from December 12 to April 5, with an average temperature below 65°F. The day of the year with the coolest water is February 21, with an average temperature of 61°F.

Average Water Temperature

Average Water Temperature at Brunswick Golden Isles AirportwarmcoolJanFebMarAprMayJunJulAugSepOctNovDec50°F55°F60°F65°F70°F75°F80°F85°F90°FAug 883°FAug 883°F61°FFeb 2161°FFeb 21Jun 779°FJun 779°FOct 479°FOct 479°FDec 1265°FDec 1265°FApr 565°FApr 565°F
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

Best Time of Year to Visit

To characterize how pleasant the weather is at Brunswick Golden Isles Airport throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best times of year to visit Brunswick Golden Isles Airport for general outdoor tourist activities are from early April to late May and from late September to early November, with a peak score in the last week of April.

Tourism Score

Tourism Score at Brunswick Golden Isles Airportbest timeJanFebMarAprMayJunJulAugSepOctNovDec02468106.56.53.03.06.46.43.83.8 precipitationprecipitationcloudscloudstemperaturetemperaturetourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best times of year to visit Brunswick Golden Isles Airport for hot-weather activities are from early May to late June and from late August to early October, with a peak score in the last week of May.

Beach/Pool Score

Beach/Pool Score at Brunswick Golden Isles Airportbest timeJanFebMarAprMayJunJulAugSepOctNovDec02468105.85.80.70.75.75.74.84.8 precipitationprecipitationcloudscloudstemperaturetemperaturebeach/pool score
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

Growing Season

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season at Brunswick Golden Isles Airport typically lasts for 9.7 months (294 days), from around February 19 to around December 10, rarely starting before January 29 or after March 16, and rarely ending before November 15 or after January 3.

Time Spent in Various Temperature Bands and the Growing Season

Time Spent in Various Temperature Bands and the Growing Season at Brunswick Golden Isles Airportgrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Feb 1950%Feb 1950%Dec 1050%Dec 1090%Mar 1690%Mar 1690%Nov 1590%Nov 1510%Jan 2910%Jan 2910%Jan 310%Jan 3Jul 27100%Jul 27100%coldcoolcomfortablewarmhotvery cold
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

Based on growing degree days alone, the first spring blooms at Brunswick Golden Isles Airport should appear around January 17, only rarely appearing before January 10 or after January 28.

Growing Degree Days

Growing Degree Days at Brunswick Golden Isles AirportJanFebMarAprMayJunJulAugSepOctNovDec0°F1,000°F2,000°F3,000°F4,000°F5,000°F6,000°F7,000°FJan 1790°FJan 1790°FApr 11900°FApr 11900°FMay 241,800°FMay 241,800°FDec 316,718°FDec 316,718°F
The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

Solar Energy

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences significant seasonal variation over the course of the year.

The brighter period of the year lasts for 2.8 months, from April 6 to June 29, with an average daily incident shortwave energy per square meter above 6.0 kWh. The brightest day of the year is May 14, with an average of 6.8 kWh.

The darker period of the year lasts for 2.8 months, from November 11 to February 4, with an average daily incident shortwave energy per square meter below 3.7 kWh. The darkest day of the year is December 21, with an average of 3.0 kWh.

Average Daily Incident Shortwave Solar Energy

Average Daily Incident Shortwave Solar Energy at Brunswick Golden Isles AirportbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh1 kWh2 kWh3 kWh4 kWh5 kWh6 kWh7 kWh8 kWh9 kWhMay 146.8 kWhMay 146.8 kWhDec 213.0 kWhDec 213.0 kWhJun 296.0 kWhJun 296.0 kWhFeb 43.7 kWhFeb 43.7 kWh
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

For the purposes of this report, the geographical coordinates of Brunswick Golden Isles Airport are 31.259 deg latitude, -81.466 deg longitude, and 13 ft elevation.

The topography within 2 miles of Brunswick Golden Isles Airport is essentially flat, with a maximum elevation change of 30 feet and an average elevation above sea level of 14 feet. Within 10 miles is also essentially flat (43 feet). Within 50 miles is essentially flat (177 feet).

The area within 2 miles of Brunswick Golden Isles Airport is covered by artificial surfaces (52%) and trees (40%), within 10 miles by herbaceous vegetation (52%) and trees (22%), and within 50 miles by water (40%) and trees (34%).

Data Sources

This report illustrates the typical weather at Brunswick Golden Isles Airport, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

Brunswick Golden Isles Airport has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.

In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.

The stations on which we may fall back include but are not limited to Malcolm Mc Kinnon Airport, Jesup Wayne County Airport, Ft. Stewart, Fernandina Beach Municipal Airport, Jacksonville International Airport, Hunter U. S. Army Airfield, Naval Station Mayport, and Savannah International Airport.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for aiports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.